1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
content / renderer / media / android / stream_texture_wrapper_impl.cc [blame]
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/media/android/stream_texture_wrapper_impl.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/functional/callback_helpers.h"
#include "base/logging.h"
#include "base/task/bind_post_task.h"
#include "base/task/single_thread_task_runner.h"
#include "cc/layers/video_frame_provider.h"
#include "gpu/GLES2/gl2extchromium.h"
#include "gpu/command_buffer/client/client_shared_image.h"
#include "gpu/command_buffer/client/shared_image_interface.h"
#include "gpu/command_buffer/common/shared_image_usage.h"
namespace {
// Non-member function to allow it to run even after this class is deleted.
void OnReleaseVideoFrame(scoped_refptr<content::StreamTextureFactory> factories,
scoped_refptr<gpu::ClientSharedImage> shared_image,
const gpu::SyncToken& sync_token) {
gpu::SharedImageInterface* sii = factories->SharedImageInterface();
sii->DestroySharedImage(sync_token, std::move(shared_image));
sii->Flush();
}
}
namespace content {
StreamTextureWrapperImpl::StreamTextureWrapperImpl(
bool enable_texture_copy,
scoped_refptr<StreamTextureFactory> factory,
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner)
: enable_texture_copy_(enable_texture_copy),
factory_(factory),
main_task_runner_(main_task_runner) {}
StreamTextureWrapperImpl::~StreamTextureWrapperImpl() {
DCHECK(main_task_runner_->BelongsToCurrentThread());
// Clears create video frame callback so it couldn't be called from compositor
// thread after |this| is being destroyed.
if (stream_texture_proxy_)
stream_texture_proxy_->ClearCreateVideoFrameCB();
SetCurrentFrameInternal(nullptr);
}
media::ScopedStreamTextureWrapper StreamTextureWrapperImpl::Create(
bool enable_texture_copy,
scoped_refptr<StreamTextureFactory> factory,
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner) {
return media::ScopedStreamTextureWrapper(new StreamTextureWrapperImpl(
enable_texture_copy, factory, main_task_runner));
}
scoped_refptr<media::VideoFrame> StreamTextureWrapperImpl::GetCurrentFrame() {
base::AutoLock auto_lock(current_frame_lock_);
return current_frame_;
}
void StreamTextureWrapperImpl::CreateVideoFrame(
const gpu::Mailbox& mailbox,
const gfx::Size& coded_size,
const gfx::Rect& visible_rect,
const std::optional<gpu::VulkanYCbCrInfo>& ycbcr_info) {
gpu::SharedImageInterface* sii = factory_->SharedImageInterface();
// The SI backing this VideoFrame will be read by the display compositor and
// raster. The latter will be over GL if not using OOP-R. NOTE: GL usage can
// be eliminated once OOP-R ships definitively.
scoped_refptr<gpu::ClientSharedImage> shared_image;
// Ensure that the ClientSI holds the correct texture target (which is *not*
// the texture target that ClientSharedImage would compute internally for
// these parameters).
shared_image =
sii->NotifyMailboxAdded(mailbox, viz::SinglePlaneFormat::kRGBA_8888,
coded_size, gfx::ColorSpace::CreateSRGB(),
kTopLeft_GrSurfaceOrigin, kPremul_SkAlphaType,
gpu::SHARED_IMAGE_USAGE_DISPLAY_READ |
gpu::SHARED_IMAGE_USAGE_GLES2_READ |
gpu::SHARED_IMAGE_USAGE_RASTER_READ,
GL_TEXTURE_EXTERNAL_OES);
// The pixel format doesn't matter here as long as it's valid for texture
// frames. But SkiaRenderer wants to ensure that the format of the resource
// used here which will eventually create a promise image must match the
// format of the resource(AndroidVideoImageBacking) used to create fulfill
// image. crbug.com/1028746. Since we create all the textures/abstract
// textures as well as shared images for video to be of format RGBA, we need
// to use the pixel format as ABGR here(which corresponds to 32bpp RGBA).
//
// This message comes from GPU process when the SharedImage is already
// created, so we don't need to wait on any synctoken, mailbox is ready to
// use.
scoped_refptr<media::VideoFrame> new_frame =
media::VideoFrame::WrapSharedImage(
media::PIXEL_FORMAT_ABGR, shared_image, gpu::SyncToken(),
base::BindPostTask(main_task_runner_,
base::BindOnce(&OnReleaseVideoFrame, factory_,
std::move(shared_image))),
coded_size, visible_rect, visible_rect.size(), base::TimeDelta());
new_frame->set_ycbcr_info(ycbcr_info);
if (enable_texture_copy_)
new_frame->metadata().copy_required = true;
SetCurrentFrameInternal(new_frame);
}
void StreamTextureWrapperImpl::ForwardStreamTextureForSurfaceRequest(
const base::UnguessableToken& request_token) {
stream_texture_proxy_->ForwardStreamTextureForSurfaceRequest(request_token);
}
void StreamTextureWrapperImpl::ClearReceivedFrameCBOnAnyThread() {
// Safely stop StreamTextureProxy from signaling the arrival of new frames.
if (stream_texture_proxy_)
stream_texture_proxy_->ClearReceivedFrameCB();
}
void StreamTextureWrapperImpl::SetCurrentFrameInternal(
scoped_refptr<media::VideoFrame> video_frame) {
base::AutoLock auto_lock(current_frame_lock_);
current_frame_ = std::move(video_frame);
}
void StreamTextureWrapperImpl::UpdateTextureSize(const gfx::Size& new_size) {
DVLOG(2) << __func__;
if (!main_task_runner_->BelongsToCurrentThread()) {
main_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&StreamTextureWrapperImpl::UpdateTextureSize,
weak_factory_.GetWeakPtr(), new_size));
return;
}
// InitializeOnMainThread() hasn't run, or failed.
if (!stream_texture_proxy_)
return;
if (rotated_visible_size_ == new_size)
return;
rotated_visible_size_ = new_size;
stream_texture_proxy_->UpdateRotatedVisibleSize(rotated_visible_size_);
}
void StreamTextureWrapperImpl::Initialize(
const base::RepeatingClosure& received_frame_cb,
scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner,
StreamTextureWrapperInitCB init_cb) {
DVLOG(2) << __func__;
compositor_task_runner_ = compositor_task_runner;
main_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&StreamTextureWrapperImpl::InitializeOnMainThread,
weak_factory_.GetWeakPtr(), received_frame_cb,
base::BindPostTaskToCurrentDefault(std::move(init_cb))));
}
void StreamTextureWrapperImpl::InitializeOnMainThread(
const base::RepeatingClosure& received_frame_cb,
StreamTextureWrapperInitCB init_cb) {
DCHECK(main_task_runner_->BelongsToCurrentThread());
DVLOG(2) << __func__;
// Normally, we have a factory. However, if the gpu process is restarting,
// then we might not.
if (!factory_) {
std::move(init_cb).Run(false);
return;
}
stream_texture_proxy_ = factory_->CreateProxy();
if (!stream_texture_proxy_) {
std::move(init_cb).Run(false);
return;
}
// Unretained is safe here since |stream_texture_proxy_| is a scoped member of
// the this StreamTextureWrapperImpl class which clears/resets this callback
// before |this| is destroyed.
stream_texture_proxy_->BindToTaskRunner(
received_frame_cb,
base::BindRepeating(&StreamTextureWrapperImpl::CreateVideoFrame,
base::Unretained(this)),
compositor_task_runner_);
std::move(init_cb).Run(true);
}
void StreamTextureWrapperImpl::Destroy() {
if (!main_task_runner_->BelongsToCurrentThread()) {
// base::Unretained is safe here because this function is the only one that
// can call delete.
main_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&StreamTextureWrapperImpl::Destroy,
base::Unretained(this)));
return;
}
delete this;
}
} // namespace content